"Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula Get creative with emojis in email subject lines to increase open rates! Keep your email subject line short and attention-grabbing. Try different email subject line styles to find what gets the most opens. Don’t forget to add a fun, relevant call-to-action button to your email. Is anyone even reading this? Feel free to spin in your chair while you wait Don’t make ‘em yawn! Keep your emails exciting and brief.